Comic-Con 2016 will come to a close later today, but not before the return of Sherlock Holmes and John Watson! Sunday kicked off in Hall H with the Sherlock panel, where the first trailer for Season 4 was revealed by star Benedict Cumberbatch and the show's producers. They still haven't announced exactly when the new season will debut, but these new episodes are coming on the heels of the successful holiday special, The Abominable Bride.

Sherlock: The Abominable Bride was the most watched program over the holiday season with 11.6 million viewers and the highest-ever audience share for a Sherlock episode. The special, which transported Holmes and Watson to Victorian Era England, was also released in thousands of theaters around the world to complement the TV broadcast. This trailer, which debuted on YouTube shortly after the panel, reveals that Holmes and Watson have come back to present day.

Promising laughter, tears, shocks, surprises and extraordinary cases, it was announced in April, when production began, that season four will begin with the nation's favorite detective, the mercurial Sherlock Holmes, back once more on British soil, as Doctor Watson and his wife, Mary, prepare for their biggest ever challenge - becoming parents for the first time. It was also recently announced that Toby Jones has joined the cast for the second episode in this new season, which will consist of three 90-minute episodes.

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The first of the three feature-length episodes will be directed by Rachel Talalay, who has worked as a director, producer, and professor in film and television for more than 25 years, having previously directed Doctor Who, The Flash and The Wind in the Willows. Nick Hurran will direct the second episode, and executive producer Mark Gatiss revealed during the panel that there are just two weeks left of production on Season 4, with a major scene set to be filmed on Tuesday.

Sherlock is written and created by Steven Moffat and Mark Gatiss, and inspired by the works of Sir Arthur Conan Doyle. Sherlock is produced by Sue Vertue and the executive producers are Beryl Vertue, Steven Moffat and Mark Gatiss for Hartswood Films, Bethan Jones for BBC Cymru Wales and Rebecca Eaton for Masterpiece. It is distributed internationally by BBC Worldwide. Take a look at the new trailer for Sherlock Season 4 straight from the Comic-Con panel earlier today.